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Propriedade do RDL ReadOnlyVariables

Returns the collection of ReadOnlyVariables available to the component.

Namespace:  Microsoft.SqlServer.Dts.Pipeline
Assembly:  Microsoft.SqlServer.TxScript (em Microsoft.SqlServer.TxScript.dll)

Sintaxe

'Declaração
Public ReadOnly Property ReadOnlyVariables As IDTSVariables100
    Get
'Uso
Dim instance As ScriptComponent
Dim value As IDTSVariables100

value = instance.ReadOnlyVariables

public IDTSVariables100 ReadOnlyVariables { get; }

public:
property IDTSVariables100^ ReadOnlyVariables {
    IDTSVariables100^ get ();
}

member ReadOnlyVariables : IDTSVariables100

function get ReadOnlyVariables () : IDTSVariables100

Valor da propriedade

Tipo: Microsoft.SqlServer.Dts.Runtime.Wrapper. . :: . .IDTSVariables100
An IDTSVariables100 that contains the collection of ReadOnlyVariables.

Comentários

The Script component developer makes variables available to the Script component for read-only access by listing them in the ReadOnlyVariables field in the Script Transformation Component Editor.

The Script component developer does not use the ScriptComponent class directly, but indirectly, by coding the methods and properties of the ScriptMain class, which inherits from ScriptComponent through the UserComponent class.

The developer does not have to use the ReadOnlyVariables property, because the ScriptMain class provides the Variables property for convenient access to both read-only and read/write variables through a single property. The Variables property is a property of the autogenerated UserComponent base class, not of the ScriptComponent class.

Exemplos

The following code sample demonstrates how the Script component developer might use the ReadOnlyVariables and ReadWriteVariables properties.

  Dim localInteger As Integer
  Dim localString As String

  If Me.ReadOnlyVariables.Contains("MyIntegerVariable") Then
    localInteger = CType(Me.ReadOnlyVariables("MyIntegerVariable").Value, Integer)
  End If

  If Me.ReadWriteVariables.Contains("MyStringVariable") Then
    Me.ReadWriteVariables("MyStringVariable").Value = localString
  End If